package 集合;

import java.lang.reflect.Array;
import java.util.*;
import java.util.concurrent.ConcurrentHashMap;

/**
 * @author:谢君臣
 * @Date:2021/10/13-14:24
 * @version:1.0
 * @function:
 */
public class Array与ArrayList {
    public static void main(String[] args) {
        ArrayList arrayList = new ArrayList();
        arrayList.add(1);
        List list = Collections.synchronizedList(arrayList);
        Vector<Integer> li = new Vector<>();
        Array[]res= new Array[10];
        ConcurrentHashMap hashMap = new ConcurrentHashMap();
        hashMap.put("ada","adsfa");
        Set<Integer> set = new HashSet<>();

        String s = "asdf";
        s.equals("asd");

    }
}
